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Finding the Fourth Proportional to 7,395, 11,092.50 and 1,923

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Solution

The fourth proportional to 7,395, 11,092.50 and 1,923 is: 2,884.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,395 : 11,092.50 = 1,923 : x
  2. Step 2: Convert to fraction form
    7,395/11,092.50 = 1,923/x
  3. Step 3: Cross multiply
    7,395x = 11,092.50 × 1,923
  4. Step 4: Simplify right side
    7,395x = 21,330,877.50
  5. Step 5: Solve for x
    x = 21,330,877.50/7,395
  6. Step 6: Final answer
    x = 2,884.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.